v0.7.0.0 fixes #1

Fixes:

- fixed wrong weapon immunity for assaulter's heavy trench coat

- added text fixes by Spetznaz_Reaper affecting typos and incosistencies
in dialogs and item descriptions

Changes:

- increased durability to toxic fields for all helmets (especially
gasmasks and SEBA helmet)

- increase toxic field immunity for protective suits

- tweaked base radio's playlists and music file's naming

- added 4 new music tracks by KINO (conversion by damjancd) - FEATURE
DISABLED FOR NOW